Terminal console hanging in Lion

I usually just use Terminal to connect to and map shared drives on my office network. I'm not sure what I've done recently, but now whenever I open Terminal, the console just hangs and eventually the entire system locks up.

There's no $ prompt which is what I usually see when I open Terminal.

I can eventually use Force Quit to shut it down, but other programs will run extremely slowly or hang until I restart.

I've tried deleting the plist entry in Library, but that hasn't worked. I've downloaded iTerm and the same thing happens with that.

I've had Activity Monitor open before I've opened Terminal, but there's no spike in CPU usage - it just registers as not responding.

Actually guys, hidden files aren't shown! Although I ran that line of code, something didn't work out right, so I still can't see hidden files
Any idea of how I can get to my bash profile without making that change through Terminal?

The problem is with my work mac, so I'll try the new user thing on Monday now I'm less busy, but if there's a way to get to the bash profile I'll do that first.
Thanks again for your help, guys.